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Dust Hazard Analysis (DHA)

Ensure compliance to regulations and apply state of the art process safety systems within your facilities

Dust Hazard Analysis Helps Your Facility and Personnel Stay Safe

Companies that are aware of the risks of combustible dust and facility hazards are more likely to prevent or manage an incident before it occurs. Combustible dust fires and explosions can be catastrophic and can lead to crippling property damage, loss of life and business interruption. A Dust Hazard Analysis (DHA) is designed to protect your facility against combustible dust hazards.

Combustible dusts are finely divided solids that present flash fire and combustion hazards under certain conditions. These dusts can be found in most industries and come in many forms including (but not limited to): flours, grains, hops, sugars, charcoal, lactose, aluminum, wood dust, rubber, etc.

A typical DHA includes:

  • A systematic review to identify and evaluate the potential fire, flash fire, and explosion hazards associated with the presence of one or more combustible particulate solids in a process or facility
  • Identification hazards for each process, facility, and components, as well as pinpointing safe operating ranges and proper safeguards
  • Data collection for system and performance requirements including dust hazard testing
  • Advice for combustible particulate solids management, process safety management, and documentation of all results in the DHA

NFPA 652 Deadline Update - FAQs

A Dust Hazard Analysis is Required to Stay Compliant

Fire and explosion risks are present in most industries that manufacture, handle, or generate combustible particulate solids and there are many materials that can be explosive in dust form. Industries such as food and grain, mining, and plastics manufacturing can be particularly vulnerable to combustible dust incidents. Where these hazards are present, a DHA may be required to identify, assess and mitigate the dangers of fires, deflagration, and explosions from combustible particulate solids.

Under a new update to NFPA 652 “Standard on the Fundamentals of Combustible Dust”, a DHA will be required for industrial manufacturers with existing processes and facility components. ATEX Directives 99/92/EC and Directive 94/9/EC also require dust hazards to be evaluated at facilities throughout Europe.


TÜV SÜD GRC experts are licensed and experienced Process Safety Management professionals whose knowledge is specifically related to providing the most up-to-date and thorough assessments of your facility. With TÜV SÜD GRC you can be assured that you are not just responding to regulatory needs; you are also providing and practicing the most effective and efficient process safety systems within your facilities to keep your personnel and assets safe.

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Guide to Combustible Dust Safety and Compliance
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Guide to Combustible Dust Safety and Compliance

Learn more about Dust Hazard Analysis and NFPA 652 compliance

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Overview of Combustible Dust Hazard Mitigation

Combustible Dust Hazard Mitigation

Learn more about the benefits of implementing a DHA for mitigating risk

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NFPA 652 Infographic

NFPA 652 Update

In a recent update to NFPA 652, a DHA will be required for existing processes and facilities by September 2020.

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Combustible Dust

Combustible Dust

Tiny particles, explosive hazards

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